How to use RSS?

Now the question is What do I need to do to read an RSS Feed? RSS Feed Readers and News Aggregators

1 - Using RSS on a desktop

A RSS reader (or aggregator) must be installed first, compatible with your operating system (Windows, Linux, Mac OS, etc...). See in resources. There is one that is built with XUL.
Accessing the content depends upon the reader. This may be accomplished just by a click on an "add" button to get the URL of the RSS feed, and let it added to a list of feeds.

Feed Reader or News Aggregator software allow you to grab the RSS feeds from various sites and display them for you to read and use.

A variety of RSS Readers are available for different platforms. Some popular feed readers include Amphetadesk(Windows, Linux, Mac), Feed Reader (Windows), and NewsGator (Windows - integrates with Outlook).

RSS-aware programs are available for various operating systems. Client-side readers and aggregators are typically constructed as standalone programs or extensions to existing programs such as web browsers and Email readers. Many browsers have integrated support for RSS feeds. There also are other applications that can convert an RSS feed into several usenet articles, viewable through the major newsreader software such as Mozilla Thunderbird

Once you have your Feed Reader, it is a matter of finding sites that syndicate conent and adding their RSS feed to the list of feeds your Feed Reader checks.

2 - Using a feed on a website

The RSS feed is displayed as a list of titles (and optionally summaries). A click on a title displays the new. Titles are updated automatically. A script in php or other language, builds the list each time the page is displayed by loading the RSS file and extracting the data from it.

Why RSS? Benefits and Reasons for using RSS
RSS solves a problem for people who regularly use the web. It allows you to easily stay informed by retrieving summaries of the latest content from the sites you are interested in. You save time by not needing to visit each site individually. You ensure your privacy, by not needing to join each site's email newsletter. The number of sites offering RSS feeds is growing rapidly and includes big names like Yahoo News and Amazon.com.